What is a Nonel assembly?

• A. An electric detonator combined with a battery
• B. A non-electric detonator factory crimped to a shock tube
• C. A type of explosive used in mining operations
• D. A device for measuring shock waves

Answer: (B)

A Nonel assembly refers specifically to a non-electric detonator that is factory crimped to a shock tube. This assembly is designed to safely initiate explosives without the risk associated with electric detonators, such as unwanted electrical signals that could accidentally trigger detonation.

The shock tube functions as a means of transmitting the signal to the detonator, making it an integral part of the assembly. This combination enhances both safety and efficiency in blasting operations, allowing miners to conduct their work with reduced risk of accidental detonations, which is vital in maintaining safety in mining environments.

In contrast to the other options, such as electric detonators or various types of explosives, a Nonel assembly is specifically focused on the non-electric initiation method that is widely used due to its reliability and safety in sensitive blasting situations.